Building structure.



M. F. MQGARTHY.

BUILDING STRUCTURE.

APPLICATION rILnn MAR. 31, 1910.

Patented May 21, 1912.

INVENTOR ATTORNEY'S,

WITNESSES COLUMBIA PLANOGRAPN CUWWASHINOTON, D. c.

MITCHELL F. MOCARTHY, OF NEW YORK, N. Y.

BUILDING STRUCTURE.

Specification of Letters Patent.

Patented May 21, 1912.

Application filed March 31, 1910. Serial No. 552,713.

To all whom it may concern:

Be it known that I, Mrronnm. F. Mo- CARTHY, a resident of New York, in the county of New York and State of New York, have invented certain newand useful Improvements in Building Structures, of which the following is a full, clear, and precise specification.

My invention relates to building structures, particularly to structures of cementitious material.

The salient objects of my invention are to provide channels in structural units which register upon building up of the units to form grooves for receiving keys for securing and locking the units together, and to provide an improved form of key which can be readily applied where needed to lock adjacent structural units together and to secure finish units to the structural units.

My invent-ion is clearly described in the following specification and shown on the accompanying drawing, in which drawing- Figure 1 is a perspective partly sectional view of a wall with finish units applied thereto and the keys applied for holding the various sections together and in position. Fig. 2 is a perspective partly sectional view of a floor structure showing the application of the locking keys. Fig. 3 is a front elevation view of one of the keys. Fig. 4 isa side elevation view of the key, and Fig. 5 is a perspective view of the key. In Fig. 1 the structural units shown are formed up of cementitious material, each having a body part 1 and peripheral flanges or rims 2. In the outer face of each rim is formed a channel 3, the units being similar so that when applied to each other the channels will register to form substantially semicircular grooves 4. The ends of the rims or flanges are of decreasing thickness to leave gaps 5 communicating with the grooves 4. The grooves 4 receive the substantially semi-cylindrical heads 6 of the locking keys shown in Figs. 3, 4 and 5, and the gaps 5 receive the webs 7 of these keys. The keys serve particularly for securing to the structural units finish units 8, these finish units each having a body part 9 from whose edges extend flanges 10 having channels 11 which may be of the same cross-section as the channels 3 in the structural unit-s. The ends 12 of the flanges are of reduced thickness so that when finish units are applied adjacent each other to the structural units grooves 13 and gaps 1 1 will be formed, the grooves 13 receiving the opposite head or flange 15 of the keys and the gaps 14. receiving the webs 7.

As shown in Fig. 1, the grooves at and gaps 5 extend in vertical direction and grooves 13 and gaps 14 extend in horizontal direction, and for this arrangement the heads or flanges 15 of the keys are at right angles to the heads 6 at the other end thereof. The heads or flanges 15 are preferably of greater length than the heads 6 which engage in the structural units in order that these longer flanges may engage along a sufficient area with adjacent finish units, as

shown, this engagement serving to retain the adjacent edges of the finish units in proper alinement so that the finish units present a smooth finish surface. The web section 7 immediately adjacent the long head 15 is also preferably widened in order to give a good engaging surface for the horizontal inner edges of the flanges 10 of the finish units. The finish units could, of course, be applied with their grooves parallel to those of the structural units, in which case the heads 6 and 15 would extend in the same plane. The keys are very readily applied during the building up operation, and serve to accurately and securely aline and hold the finish units in position on the structural units, and the keys serve also more or less to hold the structural units themselves in alinement.

In Fig. 2 the keys are shown applied for holding ceiling finish units against the floor structure built up of eementitious units. The floor units 16 have depending peripheral rims or flanges 17 and are supported on skew backs 17 applied to the floor beams 18. The rims or flanges near their ends are channeled to form the grooves 4: and gaps 5 when the floor units are brought together, the heads 6 and webs 7 of the keys engaging in said channels and gaps, as shown. The finish ceiling units are constructed like the finish units in Fig. 1 being channeled to form the grooves 13 and gaps 14 for receiving the web section 7 and long head 15 of the keys, the keys serving to suspend the ceiling units from the floor units and locking them securely in position thereon and also overlapping adjacent finish units to maintain a smooth ceiling surface. The webs of the keys may be of any suflicient length to allow the insertion between the ceiling units and the floor unit flanges of insulating plates 17 these plates being securely held inplace by the keys and the ceiling units supported thereby. In the arrangement in Fig. 1 such insulating plates 17 are also shown. In both the construction of Figs. 1 and 2 keys can be applied in the supporting units and then slid into proper position into engagement with the finish units as they are built up into position. strong and durable in construction and securely aline and hold the finish units in place. After application of the finish units the keys are entirely hidden and are protected against corrosion and other similar effects. I do not desire to be limited to the exact arrangement and construction which I have shown and described, as modifications are possible which will still come within the scope of my invention, and I, therefore, desire to secure the following claims by Letters Patent:

1. In a building structure, the combination of structural blocks arranged edge to edge to form a main wall and each having a longitudinal groove in its engaging edge, said grooves registering to form a longitudinal channel, the edges of each block between the groove and a side face of the block being cut away to leave a gap, the gaps of adjacent units registering to form longitudinal entrance passageway from the adjacent faces of the blocks inwardly to the channel formed between the edges of the blocks, finish units applied to the adjacent faces of the main blocks and edge to edge to form an inner wall, the engaging edge of each finish unit having a longitudinal groove and the grooves of engaging edges registering to form a longitudinal channel, the section of the engaging edges between the adjacent faces of the main block and said finish The keys are very simple,

tical edge a longitudinal groove and the grooves of adjacent blocks registering to form a longitudinal channel, each block between its groove and one of its sides being of reduced width whereby a passageway is formed between adjacent blocks leading to said channel formed between the blocks, said gap being narrower than said channel, inner finish units arranged edge to edge to form an inner wall, each finish unit having a longitudinal groove in its horizontal engaging edge registering with a similar groove in the adjacent unit to form a longitudinal channel, the section of each block between the groove therein and the side face of the unit being of reduced width whereby to form a passageway from said face to said channel between adjacent units, said passageway being narrower than said channel, and keys extending through said passageways and having heads engaging in said channels for locking the inner finish units to the outer blocks.

In witness hereof, I hereunto subscribe my name this 25th day of March, A. D.,

MITCHELL F. MOCARTHY. Witnesses:

THOMAS E. CowARr, Jnssn W. TOBEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, I). G. 

